<!DOCTYPE html>
<html>
<title>page with frame csp</title>
<script>
function addIframe() {
  const frame = document.createElement('iframe');
  frame.name = 'added-by-page';
  frame.src = `http://cross-origin.com:${location.port}` +
      '/extensions/csp/success.html';
  frame.onload = () => { window.domAutomationController.send(true); };
  document.body.appendChild(frame);
}
</script>
</html>
